利用正己烷作为分散剂，用溶胶-凝胶法制备了粒径为2～3nm 超小氧化锌量子点，强烈的尺寸效应将紫外发光峰蓝移至深紫外区(300nm～360nm)，计算得其禁带宽度约为3.5～4.0eV.用巯基乙酸对获得的氧化锌量子点进行了修饰，并对影响修饰效果的因素(溶液浓度，溶液温度，溶液混合时间，氧化锌量子点与巯基乙酸的摩尔比)进行了研究.结果 表明，巯基乙酸修饰氧化锌量子点后可得到了来自氧化锌量子点带-带跃
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